US8143444B2 - Recovery of organic acids - Google Patents
Recovery of organic acids Download PDFInfo
- Publication number
- US8143444B2 US8143444B2 US12/437,445 US43744509A US8143444B2 US 8143444 B2 US8143444 B2 US 8143444B2 US 43744509 A US43744509 A US 43744509A US 8143444 B2 US8143444 B2 US 8143444B2
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- US
- United States
- Prior art keywords
- acid
- amine
- solvent
- heating
- organic acid
- Prior art date
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- Expired - Fee Related, expires
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
2 Acetic Acid+CaCO3→Calcium Acetate+H2O+CO2
Ca(Ac)2+H2O+CO2+2TBA=>2TBA:HAc+CaCO3
TABLE 1 | |||
TBA | mass % TBA in | % mass TBA | |
Addition | the | Solvent | |
1 | 0.32% | 0.8% |
2 | 0.67% | 4.2% |
3 | 1.07% | 13.8% |
4 | 1.60% | 22.6% |
5 | 1.82% | 28.9% |
6 | 2.00% | 35.2% |
7 | 2.19% | 40.3% |
8 | 2.28% | 44.7% |
TABLE 2 | ||
g TBA | Mass TBA | Mass % TBA |
added | AQ % | Solvent |
15.4 | 0.40% | 0.8% |
30.07 | 1.05% | 6.3% |
97.25 | 1.78% | 13.7% |
97.15 | 2.56% | 23.0% |
97.07 | 3.07% | 30.6% |
97.17 | 3.21% | 37.8% |
97.39 | 3.61% | 44.3% |
97.18 | 3.99% | 50.3% |
TABLE 3 | ||||||||
Residence | Solute Free | Solute Free | Solute Free | |||||
Time | Residence | Settler | Mass % of | Mass % of TBA | Mass % of TBA in | |||
S:F ratio | Reactor | Time Settler | Reactor | Temperature | TBA in AQ | post | Solvent Post | |
Mass | RPM | (min) | (min) | Temp. (C.) | (C.) | feed. | extraction | Extraction |
0.79 | 1300 | 1.6 | 1.5 | 204 | 190.2 | 2.0% | 0.55% | 1.41% |
0.84 | 1300 | 3.2 | 2.9 | 205 | 172.3 | 2.0% | 0.70% | 1.71% |
0.39 | 1300 | 1.1 | 1.0 | 203 | 189.2 | 2.0% | 0.84% | 3.06% |
0.53 | 1000 | 1.0 | 0.9 | 202 | 193.2 | 10.8% | 1.49% | 11.52% |
0.53 | 500 | 1.0 | 0.9 | 202 | 192.5 | 10.8% | 1.57% | 12.81% |
0.53 | 250 | 1.0 | 0.9 | 201 | 192.0 | 10.8% | 1.54% | 13.09% |
0.74 | 1000 | 1.3 | 1.2 | 201 | 191.0 | 10.8% | 1.26% | 11.30% |
0.31 | 1000 | 0.8 | 0.7 | 200 | 194.0 | 10.8% | 2.31% | 23.81% |
0.69 | 500 | 0.8 | 0.7 | 199 | 191.0 | 15.4% | 1.61% | 16.84% |
0.69 | 100 | 0.8 | 0.7 | 202 | 191.0 | 15.4% | 1.88% | 16.44% |
0.14 | 500 | 1.7 | 1.6 | 203 | 191.4 | 15.4% | 2.52% | 75.66% |
0.61 | 500 | 1.7 | 1.5 | 203 | 180.0 | 15.4% | 1.63% | 19.66% |
0.61 | 100 | 1.7 | 1.5 | 204 | 184.0 | 15.4% | 1.78% | 19.90% |
0.28 | 1000 | 1.0 | 0.9 | 204 | 180.0 | 15.4% | 2.36% | 39.09% |
0.21 | 1000 | 2.2 | 1.9 | 204 | 180.0 | 15.4% | 2.30% | 51.39% |
Claims (50)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/437,445 US8143444B2 (en) | 2008-05-07 | 2009-05-07 | Recovery of organic acids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5124308P | 2008-05-07 | 2008-05-07 | |
US12/437,445 US8143444B2 (en) | 2008-05-07 | 2009-05-07 | Recovery of organic acids |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090281354A1 US20090281354A1 (en) | 2009-11-12 |
US8143444B2 true US8143444B2 (en) | 2012-03-27 |
Family
ID=41265017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/437,445 Expired - Fee Related US8143444B2 (en) | 2008-05-07 | 2009-05-07 | Recovery of organic acids |
Country Status (10)
Country | Link |
---|---|
US (1) | US8143444B2 (en) |
EP (1) | EP2274435A4 (en) |
JP (1) | JP2011519578A (en) |
CN (1) | CN102083994A (en) |
AU (1) | AU2009244135A1 (en) |
BR (1) | BRPI0908303A2 (en) |
CA (1) | CA2722735A1 (en) |
MX (1) | MX302494B (en) |
NZ (1) | NZ588804A (en) |
WO (1) | WO2009137708A1 (en) |
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JP2011519578A (en) | 2011-07-14 |
NZ588804A (en) | 2012-03-30 |
BRPI0908303A2 (en) | 2015-08-18 |
CN102083994A (en) | 2011-06-01 |
US20090281354A1 (en) | 2009-11-12 |
EP2274435A1 (en) | 2011-01-19 |
MX2010012144A (en) | 2011-01-14 |
EP2274435A4 (en) | 2012-06-20 |
CA2722735A1 (en) | 2009-11-12 |
AU2009244135A1 (en) | 2009-11-12 |
MX302494B (en) | 2012-08-17 |
WO2009137708A1 (en) | 2009-11-12 |
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